The Freeciv project will continue, and we're currently making alternative arrangements. Downloads are already moved, and freeciv.org infrastructure such as the website and metaserver are unaffected, so players should not be affected much.

However, we do expect some interruption to our project/development infrastructure used by contributors (code version control, ticket tracking, and mailing lists); migration is in progress as time permits, but there's a good chance that we won't have finished before gna.org goes away. However, all important project data is already backed up, so any hiatus should be temporary. (We are taking this opportunity to migrate version control from Subversion to Git.)

We'll post more details to this thread as we finalise them. (Please take any discussion or suggestions to the general discussion forum, not this thread.)

I should have said before: this migration is now essentially over and everything is more or less up and running. From the website:

16th July 2017 - The migration of project infrastructure from gna.org (which closed down on May 24) is now mostly complete. Source code is hosted on Github, bugs are tracked at Hostedredmine, and mailing lists are hosted at freelists.org. There are still rough edges; please bear with us.